Sheaf binding or trussing mechanism.



No. 774,894. I PATENTED NOV. 15, 1904. D. ROBERTS & J. LOWSON.

SHEAF BINDING OR TRUSSING MECHANISM.

APPLICATION FILED SEPT. 29. 1902 N0 MODEL.

3 SHBETS-SHBBI l.

E Q llllllllll lllllllllll No. 774,894. I PATBNTED NOV. 15, 1904.

D. ROBERTS & J. LOWSON. SHEAF BINDING OR TRUSSING MECHANISM.

v rruonlou FILED SEPT. 29. 1902.

M MODEL. T 2.

[nae/12pm.

PATEN IED NOV. 15, 1904. D. ROBERTS & I. LOWSON. SHEA]? BINDING 0RTRUSSING MECHANISM.

APPLIGATION FILED SEPT. 29, 1902.

3 SHEETS-SHEET 3.

NO MODEL.

UNITED STATES Patented November 15, 1904.

DAVID ROBERTS AND JOHN LOWSON, OF GRANTHAM, ENGLAND.

SHEAF BINDING OR TRUSSING MECHANISM.

SPECIFICATION forming part of Letters Patent No. 774,894, dated November15, 1904. Applicatioufiled September 29, 1902. Serial No. 125,291. (Nomodeh) To wZZ whom it may concern:

Be it known that We, DAVID Romans and JOHN LowsoN, subjects of the Kingof Great Britain, both residing and having their postoflice address atSpittlegate Iron Works, Grantham, in the county of Lincoln, England,have invented new and useful Improvements in Sheaf Binding or TrussingMechanism, of which the following is a'specification.

Our invention relates to sheaf binding or trussing mechanism, ourimprovements having especial reference to the arm for compressing thesheaves or trusses and carrying the twine around the same.

The object of our invention is to provide means whereby the binder-armafter completing the sheaf shall return by a different path to theposition from which it started-viz., by a path nearer the detent againstwhich the grain is compressedand thus leave more room than formerly forthe accumulation of the grain for the following sheaf during the timethe binder mechanism is in action. To accomplish this, the binder-arm inplace of turning on a fixed spindle is pivoted on the end of a leveralso free to turn, the said lever being mounted on a spindle actuatedadvantageously by a cam and suitable leverand-link connections, whilethe binder-arm is actuated advantageously by a crank and suitablelever-and-link connections through a spindle with universal joints; buteither cams or cranks may be used for either or both motions. The camand crank are placed on a shaft of the binder mechanism and so arrangedthat the motions of the binder-arm and of the lever on Which it ismounted are combined to give the desired path of the arm.

1n the accompanying drawings, Figure 1 is a sectional front elevation ofa sheaf-binding harvester having our improvements applied to it. Fig. 2is a plan of parts of the same; and Fig. 3 is a front view, drawn to alarger scale than Figs. 1 and 2, of gear for actuating the bindingmechanism.

Referring to the drawings, (6 is the main frame of the machine, Z thedriving-wheel, and c the operating-wheel of mechanism for raising andlowering the main frame on the wheel Z.

cZ is a chain-wheel mounted on the driving: Wheel Z and actuating,through a chain (Z, chain-wheel 0Z spindle 6Z3, and bevel-gearing 0Z*,the spindle e, from which motion for operating the cutting and bindingmechanism is derived.

f is the usual platform c0nveyer,onto which the cut grain falls, and gis a revolving drum having several circumferential rows of curved armsit, which receive the grain from the platformfand feed it up an inclinedtable a, a guard j being placed between adjacent rows of prongs it toprevent the grain returning with the prongs.

The roller Is for the platform conveyer fis actuated from the spindleeby chain-wheels k is and chain Z3 The same chain also drives the drum 9through gear-wheels. (Not shown.)

Z is the usual binder-arm, secured to the spindle m, and Z Z areauxiliary side arms, also secured to the spindle m and sometimes used toassist in the separation and compression of the grain, the said spindlem being carried in bearings in levers n 17,, secured to a spindle 0, atthe front end of which is the lever 0, and being actuated, with the armZand auxiliary arms Z Z, through the universal joints m m and lever on".

p is the usual trip-lever for putting the binder mechanism in motion,and q the usual detent, pivoted on the spindle q and against which thesheaf is compressed.

Upon the shaft 6 is a gear-wheel 0', Fig. 1, which engages with agear-wheel 9* on a spindle T and this spindle has loosely mounted uponit a sprocket-Wheel 7*, which is connected by a chain o with asprocket-wheel .9 on the knotter-shaft s.

In connection with the wheel 0 and upon the spindle 0' is arrangedclutch mechanism of any suitable construction combined with thetriplever 19 in such a manner that when under the compression of thecollected grain the said trip-lever p is operated the said clutchmechanism is put into gear to cause the rotation of the wheel .9 and theoperation of the knotting mechanism. On the Wheel 8 is a crank- I pin 8,which is connected by a rod 8 to the lever m and the said wheels hasalso formed upon it a cam-path t, which operates upon a roller Z,carried at one end of a lever the other end of which is connected by anadjustable link with the arm o, with which arrangement it will beunderstood that when motion is imparted to the wheels the shaft m willbe rocked, and at the same time the levers a 02, carrying the saidshaft, will be oscillated through the arc of a circle, as indicated bythe dotted lines in Fig. 1.

The shape of the cam t and the position of the same relatively with thepin 8 are so adjusted as to cause the point of the binder-arm Z whencarrying the twine round the sheaf to any of the usual knottermechanisms 4,; and compressing the sheaf against the detent g to travelin the dotted curved line a.

The detent q is actuated in the usual manner from the binder mechanismand so adjusted that on a sheaf being formed and the knot tied thedetent q is rocked backward, and the ejector-arms w, coming behind thesheaf, pass it over the driving-wheel Z to the ground or to any of theusual carriers. The point of the binder-arm Z, through the action of thecrank-pin 8 and cam 2f, returns to its starting position through thepath a u, and thus leaves room for the incoming grain. At the same timethe other parts of the mechanism are returned to their starting positionready to receive another sheaf. x

The binder-arm Z has a hinged tailpiece Z which drops clear of thedriving-wheel b and other mechanism, but on being carried through thetable "Z takes the path of the binder-arm Z. The said tailpiece can onlyleave the path of the arm Z outwardlythat is to say, it cannot becompressed inwardly toward the axis of rotation, and consequently itwill prevent the grain being fed under the arm Z during the returnstroke of the latter. We

may, if required, add the usual packer-arms to assist the binder-armZ inraising the grain against the detent q.

Although we have described our improvements as applied to a sheaf-binderharvester of the kind forming the subject-matter of our application ofeven date, No. 125,290, it is to be understood that it may be applied toother sheaf-binding harvesterssuch, for instance, as those of the typewhere the sheaf is bound outside the main driving-wheeland also tomachines for trussing straw, a number of binding-arms, each with itstying mechanism, being used to correspond with the number of ties on thetruss.

A crank actuating the binder-arm and a cam actuating the oscillatinglevers have been shown; but cams or cranks may be used for either orboth motions.

Having now particularly described and ascertained the nature of our saidinvention and in what manner the same is to be performed, we declarethat what We claim is In asheaf binding and trussing machine, thecombination with the binder-platform a triplever thereon and knottermechanism located above the said platform, of a binder-arm pivoted belowand capable of lying completely beneath the said platform, a shaft oraxis upon which the binder-arm is carried, pivoted levers carrying thesaid shaft or axis and means for oscillating the said levers in such amanner that the point of the binder-arm descends beneath the table aftertying a sheaf or truss at a point nearer to the trip-lever than that atwhich it rises above the table preparatory to tying a sheaf or truss,substantially as described.

DAVID ROBERTS. JOHN LOWSON.

WVitnesses:

JOHN E. Bonsrnam), (J. G. REDFERN.

